fix(ui): подтверждать удаление WireGuard и блокировать повторы

app/(main)/wireguard/page.tsx

@@ -1,6 +1,6 @@
 "use client"
 
-import { Suspense, useCallback, useEffect, useMemo, useState } from "react"
+import { Suspense, useCallback, useEffect, useMemo, useRef, useState } from "react"
 import Link from "next/link"
 import { useRouter, useSearchParams } from "next/navigation"
 import { PageHeader } from "@/components/page-header"
@@ -197,6 +197,9 @@ function WireGuardPageContent({ selectedServerId, selectedInterfaceId, allInterf
   const [exportPeerId, setExportPeerId] = useState<string | null>(null)
   const [peerIface, setPeerIface] = useState<WgIfaceWithServer | null>(null)
   const [pendingDelete, setPendingDelete] = useState<PendingDelete | null>(null)
+  const deleteLock = useRef(false)
+  const [deleteBusy, setDeleteBusy] = useState(false)
+  const [deleteError, setDeleteError] = useState<string | null>(null)
   const [historyOpen, setHistoryOpen] = useState(false)
   const [revisions, setRevisions] = useState<ConfigRevisionDto[]>([])
   const [historyLoading, setHistoryLoading] = useState(false)
@@ -490,29 +493,38 @@ function WireGuardPageContent({ selectedServerId, selectedInterfaceId, allInterf
   }
 
   async function confirmDelete() {
-    if (!pendingDelete) return
+    if (!pendingDelete || deleteLock.current) return
     if (sourceUnavailable(pendingDelete.iface.serverId)) return
     if (!isLive) {
       toast.info("Доступно только в live-режиме")
       setPendingDelete(null)
       return
     }
+    deleteLock.current = true
+    setDeleteBusy(true)
+    setDeleteError(null)
     try {
       if (pendingDelete.kind === "iface") {
         if (!pendingDelete.iface.rosId) {
           toast.info("Доступно только в live-режиме")
           return
         }
-        await deleteWireGuardInterface(backendUrl, pendingDelete.iface.serverId, pendingDelete.iface.rosId)
+        const result = await deleteWireGuardInterface(backendUrl, pendingDelete.iface.serverId, pendingDelete.iface.rosId)
+        if (result?.ok !== true) throw new Error("Сервер не подтвердил удаление")
         toast.success("Удалено")
       } else {
-        await deleteWireGuardPeer(backendUrl, pendingDelete.iface.serverId, pendingDelete.peerId)
+        const peer = pendingDelete.iface.peers.find(p => p.id === pendingDelete.peerId || p.rosId === pendingDelete.peerId)
+        const result = await deleteWireGuardPeer(backendUrl, pendingDelete.iface.serverId, peer?.rosId ?? pendingDelete.peerId)
+        if (result?.ok !== true) throw new Error("Сервер не подтвердил удаление")
         toast.success("Пир удалён")
       }
       setPendingDelete(null)
       await loadLive()
     } catch (e) {
-      toast.error(e instanceof Error ? e.message : "Ошибка удаления")
+      setDeleteError(e instanceof Error ? e.message : "Ошибка удаления")
+    } finally {
+      deleteLock.current = false
+      setDeleteBusy(false)
     }
   }
 
@@ -887,7 +899,7 @@ function WireGuardPageContent({ selectedServerId, selectedInterfaceId, allInterf
         onRequestLiveExport={isLive ? handleLiveExport : undefined}
       />
 
-      <AlertDialog open={!!pendingDelete} onOpenChange={(v) => { if (!v) setPendingDelete(null) }}>
+      <AlertDialog open={!!pendingDelete} onOpenChange={(v) => { if (!v && !deleteLock.current) { setPendingDelete(null); setDeleteError(null) } }}>
         <AlertDialogContent size="default">
           <AlertDialogHeader>
             <AlertDialogMedia className="bg-destructive/10 text-destructive">
@@ -904,10 +916,12 @@ function WireGuardPageContent({ selectedServerId, selectedInterfaceId, allInterf
                   : null}
             </AlertDialogDescription>
           </AlertDialogHeader>
+          {deleteBusy && <p role="status" className="text-sm text-muted-foreground">Ожидание подтверждения удаления…</p>}
+          {deleteError && <p role="alert" className="text-sm text-destructive">{deleteError}</p>}
           <AlertDialogFooter>
-            <AlertDialogCancel onClick={() => setPendingDelete(null)}>Отмена</AlertDialogCancel>
-            <AlertDialogAction variant="destructive" onClick={() => void confirmDelete()}>
-              Удалить
+            <AlertDialogCancel disabled={deleteBusy}>Отмена</AlertDialogCancel>
+            <AlertDialogAction type="button" variant="destructive" disabled={deleteBusy} onClick={() => void confirmDelete()}>
+              {deleteBusy ? "Удаление…" : "Удалить"}
             </AlertDialogAction>
           </AlertDialogFooter>
         </AlertDialogContent>